Clarify type of id used

[rbdr/blog] / static / css / style.css

* {
  margin: 0;
  padding: 0;
}

body {
  background-image: url('/images/header_background.png');
  background-size: auto 300px;
  background-attachment: fixed;
  line-height: 1.45;
}

header {
  background-image: url('/images/header_foreground.png');
  background-repeat: no-repeat;
  background-size: auto 300px;
  height: 300px;
}

header a {
  color: transparent;
  display: block;
  max-height: 500px;
}

main {
  background-color: white;
  padding: 1.414em;
}

h1, h2, h3, h4 {
  margin: 1.414em 0 0.5em;
  font-weight: 400;
  width: 100%;
  max-width: 640px;
}

p, ul, ol, img {
  width: 100%;
  margin: 1.414em 0;
  max-width: 480px;;
}

ul, ol { margin-left: 1.414em; }

h1 { font-size: 3.998em; }
h2 { font-size: 2.827em; }
h3 { font-size: 1.999em; }
h4 { font-size: 1.414em; }

code {
  background-color: whitesmoke;
  padding: 0.2em 0.5em;
}

pre {
  background-color: whitesmoke;
  padding: 1em;
  max-width: 40em;
}

footer {
  background-color: pink;
  padding: 1.414em;
}